Over the past few years, our paradigm of galaxy formation has been qualitatively transformed. The JWST has revealed a surprisingly large population of early UV-bright galaxies at redshifts z>10, challenging modern theories of galaxy formation. Observations from JWST and ALMA have also shown that disk galaxies were already common in the early Universe by z>4, implying that disks form much earlier than previously thought (z∼1−2). Closer to home, these high-redshift discoveries can be mapped onto the formation and evolution of our own Milky Way, which can now be traced through chemo-kinematic “archaeological” surveys of nearby stars back to the dawn of the Galactic disk. These local data suggest that the Milky Way disk also formed surprisingly early, by z∼3. In my talk, I will demonstrate how state-of-the-art simulations of galaxies help us solve these puzzles and build a coherent picture of galaxy formation and evolution across cosmic time. In particular, I will highlight the importance of predictive, physically motivated models for key unresolved processes, such as ISM turbulence and turbulence-regulated star formation, which enable us to investigate these processes under the extreme and largely uncharted conditions of the early Universe.
https://eu02web.zoom-x.de/j/65109190681?pwd=8WpAwUXHilQa3HKSoMRqYkj1uTcSRo.1
